439th Avenue over W. Fork of Vermillion Rv
PoorMcCook County, South Dakota · 2W & 4.1N of Salem · Structure no. 000000044090039
- Built
- 1961
- 64 years old
- Condition
- Poor
- inspected June 2024
- Type
- Channel Beam
- Concrete
- Length
- 38 ft
- 2 main spans
- Daily traffic
- 45
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
439th Avenue over W. Fork of Vermillion Rv is a concrete channel beam carrying 439th Avenue over W. Fork of Vermillion Rv in McCook County, South Dakota. It was built in 1961, so it is 64 years old, older than the South Dakota average of 48.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 45 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2032. The structure is 38 ft (11.6 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 439th Avenue over W. Fork of Vermillion Rv built?
It was built in 1961, making it 64 years old in 2025.
What condition is 439th Avenue over W. Fork of Vermillion Rv in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.
How much traffic does 439th Avenue over W. Fork of Vermillion Rv carry?
About 45 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 439th Avenue over W. Fork of Vermillion Rv?
The structure is 38 ft (11.6 m) long with a longest span of 17 ft (5.3 m) and a deck 24 ft wide.
Who owns 439th Avenue over W. Fork of Vermillion Rv?
It is owned by the County Highway Agency.